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Chmod 2740

Owner can read, write, execute. Group can read. Others have no permissions. SETGID bit is set.

Numeric Notation

2740

Symbolic Notation

rwxr-S---

Command

chmod 2740 file

Permission Breakdown

Detailed view of permissions for each user category

Owner

✓ Read✓ Write✓ Execute

Group

✓ Read✗ Write✗ Execute

Others

✗ Read✗ Write✗ Execute

Special Permissions

✓ SETGID bit is set

For Files

chmod 2740 filename.txt

Changes permissions of a single file

chmod 2740 *.txt

Changes permissions of all .txt files

After applying chmod 2740, files will display as:

rwxr-S--- filename.txt

For Directories

chmod 2740 dirname

Changes permissions of a directory

chmod -R 2740 dirname

Recursively changes all files and subdirectories

After applying chmod 2740, directories will display as:

drwxr-S--- dirname

Common Use Cases for Chmod 2740

Owner Scripts

Files where the owner needs full control and execution rights.

Shared Reading

Files that need to be readable by multiple users or groups.

Restricted Access

Files with restricted access, not available to public users.

Related Chmod Codes

Explore similar permission configurations

Try the Interactive Calculator

Experiment with different permission combinations

Understanding Chmod 2740

The chmod 2740 command sets specific file permissions in Linux and Unix systems. This permission configuration owner can read, write, execute. group can read. others have no permissions. setgid bit is set.

In the numeric notation 2740, each digit represents the permission level for different user categories. The symbolic representation rwxr-S--- provides a visual way to understand these permissions, where 'r' means read, 'w' means write, 'x' means execute, and '-' means no permission.

When you execute chmod 2740 filename, you're modifying the file's access control list to match this specific permission pattern. This is essential for maintaining proper security and access control in multi-user environments.